... heavy workpiece 5) rapid testing RHL-160 Leeb Digital Portable metal Hardness Tester Main Applicationl Die cavity ... large range and multi-measuring areas for large-scale work pieceFeaturesl 3 inch LCD,or LED displayl ... date, impact direction, impact times, material and hardness scale etc.l Upper and lower limit can be preset ... 170~960)HLDl Measuring direction:360°l Hardness Scale:HL,HB,HRB,HRC,HRA,HV,HSl ...